1. P.V. Mohanan, Toxicological/Safety Evaluation of an Anticancer Drug, Ph.D. Thesis, Kerala University, Kerala, 1996.
2. Cytotoxic potential of the preparations from Solanum trilobatum and the effect of sobatum on tumour reduction in mice;Mohanan;Cancer Lett.,1996
3. Effect of sobatum on tumour development and chemically induced carcinogenesis;Mohanan;Cancer Lett.,1997
4. Effect of sobatum on ultra violet induced damage and superoxide production;Mohanan;Ind. J. Pharmacol.,1997
5. Mutagenicity and antimutagenicity evaluation of sobatum by in vitro method;Mohanan;Biomedicine,1997